Sewing machine apparatus for setting the pitch of the last additional stitch
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United States of America Patent
Stats
-
Jan 3, 1989
Grant Date -
N/A
app pub date -
Nov 26, 1986
filing date -
Nov 29, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In a sewing machine equipped with an apparatus to terminate stitching at a predetermined point, the machine normally does not terminate stitching exactly at the desired predetermined point because the elastic nature of the workpiece causes the workpiece to stretch. A last stitch is added beyond the point where stitching terminates by the 'step sewing' apparatus of this invention. To perform step sewing, an operator inputs a stitch pitch for step sewing with a digital switch, then pushes a step sewing button. Based on the selected stitch pitch, a CPU reads selected stitch pitch data. The data is used by the CPU to control a stitch pitch setting mechanism. A stitching device then performs a single stitch at the selected stitch pitch. By selecting the proper stitch pitch, the last stitch can terminate at the desired termination point.
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